Implement leo add command

leo/commands/add.rs

@@ -0,0 +1,105 @@
+//
+// Usage:
+//
+//    leo add -a author -p package_name -v version
+//    leo add -a author -p package_name
+//
+
+use crate::{
+    cli::CLI,
+    cli_types::*,
+    credentials::*,
+    errors::{AddError::*, CLIError::AddError},
+};
+
+use std::{collections::HashMap, env::current_dir, fs::File, io::Write};
+
+pub const ADD_URL: &str = "api/package/fetch";
+
+#[derive(Debug)]
+pub struct AddCommand;
+
+impl CLI for AddCommand {
+    // Format: author, package_name, version
+    type Options = (Option<String>, Option<String>, Option<String>);
+    type Output = ();
+
+    const ABOUT: AboutType = "Install a package from the package manager";
+    const ARGUMENTS: &'static [ArgumentType] = &[];
+    const FLAGS: &'static [FlagType] = &[];
+    const NAME: NameType = "add";
+    const OPTIONS: &'static [OptionType] = &[
+        // (argument, conflicts, possible_values, requires)
+        ("[author] -a --author=<author> 'Specify a package author'", &[], &[], &[
+            "package_name",
+        ]),
+        (
+            "[package_name] -p --package_name=<package_name> 'Specify a package name'",
+            &[],
+            &[],
+            &["author"],
+        ),
+        (
+            "[version] -v --version=[version] 'Specify a package version'",
+            &[],
+            &[],
+            &["author", "package_name"],
+        ),
+    ];
+    const SUBCOMMANDS: &'static [SubCommandType] = &[];
+
+    fn parse(arguments: &clap::ArgMatches) -> Result<Self::Options, crate::errors::CLIError> {
+        if arguments.is_present("author") && arguments.is_present("package_name") {
+            return Ok((
+                arguments.value_of("author").map(|s| s.to_string()),
+                arguments.value_of("package_name").map(|s| s.to_string()),
+                arguments.value_of("version").map(|s| s.to_string()),
+            ));
+        } else {
+            return Err(AddError(MissingAuthorOrPackageName));
+        }
+    }
+
+    fn output(options: Self::Options) -> Result<Self::Output, crate::errors::CLIError> {
+        let token = read_token()?;
+
+        let (mut result, package_name) = match options {
+            (Some(author), Some(package_name), version) => {
+                let client = reqwest::blocking::Client::new();
+                let url = format!("{}{}", PACKAGE_MANAGER_URL, ADD_URL);
+
+                let mut json = HashMap::new();
+                json.insert("author", author);
+                json.insert("package_name", package_name.clone());
+
+                if let Some(version) = version {
+                    json.insert("version", version);
+                }
+
+                match client.post(&url).bearer_auth(token).json(&json).send() {
+                    Ok(result) => (result, package_name),
+                    //Cannot connect to the server
+                    Err(_error) => {
+                        return Err(AddError(ConnectionUnavailable(
+                            "Could not connect to the package manager".into(),
+                        )));
+                    }
+                }
+            }
+            _ => return Err(AddError(MissingAuthorOrPackageName)),
+        };
+
+        let mut path = current_dir()?;
+        path.push(format!("{}.zip", package_name));
+
+        // TODO (raychu86) Display download progress
+        let mut buffer: Vec<u8> = vec![];
+        result.copy_to(&mut buffer).unwrap();
+
+        let mut file = File::create(path)?;
+        file.write_all(&buffer)?;
+
+        log::info!("Successfully added package");
+        Ok(())
+    }
+}

leo/commands/login.rs

@@ -12,7 +12,7 @@ use crate::{
     credentials::*,
     errors::{
         CLIError::LoginError,
-        LoginError::{CannotGetToken, ConnectionUnavalaible, WrongLoginOrPassword},
+        LoginError::{CannotGetToken, ConnectionUnavailable, WrongLoginOrPassword},
     },
 };
 
@@ -84,7 +84,7 @@ impl CLI for LoginCommand {
                     },
                     //Cannot connect to the server
                     Err(_error) => {
-                        return Err(LoginError(ConnectionUnavalaible(
+                        return Err(LoginError(ConnectionUnavailable(
                             "Could not connect to the package manager".into(),
                         )));
                     }

leo/commands/mod.rs

@@ -1,3 +1,6 @@
+pub mod add;
+pub use self::add::*;
+
 pub mod build;
 pub use self::build::*;
 

leo/errors/cli.rs

@@ -3,6 +3,9 @@ use leo_package::errors::*;
 
 #[derive(Debug, Error)]
 pub enum CLIError {
+    #[error("{}", _0)]
+    AddError(AddError),
+
     #[error("{}", _0)]
     BuildError(BuildError),
 
@@ -84,6 +87,13 @@ impl From<BuildError> for CLIError {
     }
 }
 
+impl From<AddError> for CLIError {
+    fn from(error: AddError) -> Self {
+        log::error!("{}\n", error);
+        CLIError::AddError(error)
+    }
+}
+
 impl From<ChecksumFileError> for CLIError {
     fn from(error: ChecksumFileError) -> Self {
         log::error!("{}\n", error);

leo/errors/commands/add.rs

@@ -0,0 +1,10 @@
+use std::ffi::OsString;
+
+#[derive(Debug, Error)]
+pub enum AddError {
+    #[error("connection unavailable {:?}", _0)]
+    ConnectionUnavailable(OsString),
+
+    #[error("missing author or package name")]
+    MissingAuthorOrPackageName,
+}

leo/errors/commands/login.rs

@@ -5,8 +5,8 @@ pub enum LoginError {
     #[error("{:?}", _0)]
     CannotGetToken(OsString),
 
-    #[error("connectin unavalaible {:?}", _0)]
-    ConnectionUnavalaible(OsString),
+    #[error("connection unavailable {:?}", _0)]
+    ConnectionUnavailable(OsString),
 
     #[error("wrong login or password {:?}", _0)]
     WrongLoginOrPassword(OsString),

leo/errors/commands/mod.rs

@@ -1,3 +1,6 @@
+pub mod add;
+pub use self::add::*;
+
 pub mod build;
 pub use self::build::*;
 

leo/main.rs

@@ -35,6 +35,7 @@ fn main() -> Result<(), CLIError> {
             DeployCommand::new().display_order(12),
             CleanCommand::new().display_order(13),
             WatchCommand::new().display_order(14),
+            AddCommand::new().display_order(15), // TODO update add command order
         ])
         .set_term_width(0)
         .get_matches();
@@ -55,6 +56,7 @@ fn main() -> Result<(), CLIError> {
         ("deploy", Some(arguments)) => DeployCommand::process(arguments),
         ("clean", Some(arguments)) => CleanCommand::process(arguments),
         ("watch", Some(arguments)) => WatchCommand::process(arguments),
+        ("add", Some(arguments)) => AddCommand::process(arguments),
         _ => unreachable!(),
     }
 }